What happened inside Patriot Skateboards 6 years ago?

MALDEN, Mass. — Shawn Clark's skate shop was his pride and joy.

The 39-year-old former U.S. Marine had always wanted to open a skateboard store when he left the service. It was only natural that he would name it Patriot Skateboards, his wife said.

The little shop sat on Main Street in Malden, Massachusetts, not far from the Oak Grove T stop.

Shawn was in his store on January 29, 2013 and it was shortly after noon that Tuesday when two men in dark clothing with hoods up and sunglasses on strode into the store.

Surveillance video shows them walking purposefully through the door off the snow-covered sidewalk.

Shawn Clark had been through two tours in Iraq while in Marines and his wife says he would've fought back against robbers.

The surveillance footage released by the Middlesex County District Attorney's office cuts off as the two men approach the counter.

We can't see what happens next.

But Shawn's wife, Melissa, recalls what happened that day six years ago as if it were yesterday.

“Your husband was shot with a small caliber weapon ... he didn't make it," she recalled being told in a 2016 interview with Boston 25 News. “I think I probably said the word 'no' a good hundred times. And just sat in the car and said no, no, no. I don't believe you. He made it home from a war zone twice. No.”

The Middlesex County District Attorney's Office says there was a confrontation, which continued to the doorway of the store. During that confrontation, Shawn was shot multiple times by one of those men.

He died later that day.

"In some ways, it feels like it's still the first year," Melissa told Boston 25 News in 2016. "When something like this happens time just kind of really warps a little bit. The wound is always open, it's always there. He was just kind of magnetic. And everywhere we went, he was always drawing people in."

Melissa said she believes her husband died fighting for what he believed in.

“I absolutely have no doubt that my husband fought back. That was just in his nature. It was in his training, it was who Shawn was,” she said.

In the years since, the district attorney's office has put out countless calls for information on those two men in hoods and sunglasses. A reward has been offered for information that leads to an arrest, but no one has come forward.

"We have spent -- as have the investigators, the state police assigned to my office, Malden police -- countless hours, interviewing people, looking at that video," District Attorney Marian Ryan told Boston 25 News in 2016.

The district attorney's office issues an annual call for information in the death of Shawn Clark, but the small amount of information known in this case makes it difficult to get more.

If you recognize anything about the two men or remember something you saw that day, you are asked to contact Malden Police or the Middlesex County District Attorney's Office.

Cox Media Group